1994 Oldsmobile Achieva Owner's Manual - Page 183

(-lS°C) or above. These numbers onan oil container show viscosity, or its thickness. Do not use other viscosity oils, such as SAE 1OW-40 or S A E 20W50. If you cannot findoils with the new "starburst"symbol on the frontof the container, you should look for and me oils containing the following three things: SH or SG NOTICE: "SH" or "SG" must be on the oil container, eitherby itself or combined If you use.oilsthat da not have with other quality designations,sucheither the "starburst" symbol or an as "SH/CD," "SH,SG,CD," API SH or SG designation, can you "SG/CD," etc. These letters show cause engine damage not covered American PetroleumInstitute (API) by yourwarranty. levels of quality. S A E 5W-30 GM Goodwrench@ oil Canada, GI1 (in Engine Oil) meets all requirement2 the Energy Conserving 11 for your vehicle. Oils with these words the on container will help you save fuel. Engine Oil Additives These three things are usually included i n Don't add anythingto your oil.Your a doughnut shaped logo (symbol) on mostOldsmobile dealer is ready advise if to containers. If you cannot findoils with the you think something should be added. "starburst" symbol, you should look for oils with the doughnut shaped symbol, containing the three things noted above. When to Change Engine Oil See if any one these istrue for you: of Most trips are less than 4 miles (6 It's below freezing outside and most trips are less than 10 miles (1 k m ) . 6 The engine is low speed most the at of time (as in door-to-door delivery, or in stop-and-go traffic). You tow a trailer often. Most trips are through dusty places. If any oneof these istrue for your vehicle, then you needto change your oil and filter every 3,000 miles (5 000 km) or 3 months -whichever comes first. If none of them is true, change the oil every 7,500 miles (12.500 km)or 12 months -whichever comes first. Change the filter at thefirst oil change and at every other oil change afterthat. w- 181